The Graphics and Media Control panel is installed as part of the Intel ggraphics driver. The easiest way to access it is to right click on an open area of your desktop and select "Graphics Properties" from the popup menu.
Here is a FAQ that shows some of the settings that can be found in the control panel:
This Control Panel is not installed with the Intel GPU on Atom tablets? Is it possible to install it to get more options for Atom x86 (32bit) tablets running Windows 8?